The United Nations expressed concern Wednesday over footage purporting to show Ukrainian troops using a helicopter painted with the organization’s colors and insignia.

Russian news website Life News reported that three U.N.-painted Mil Mi-24 combat helicopters and one Mi-8 transport helicopter had been spotted assisting government troops in eastern Ukraine. The footage could not be independently verified by NBC News.

LIfe News is officially independent but reportedly has ties to Russian security services. It posted a video of one of the Mil Mi-24 helicopters and the raw footage was posted to YouTube by the Russian state-run broadcaster Russia Today.

For video and the complete story by Alexander Smith of NBC News, click here.